【例】判断数正负

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	王婧涵	16ms	6.3 MiB	C++14(O2)	199 Bytes	2025-3-5 20:10:33
AC	坤坤	16ms	6 MiB	C++14(O2)	245 Bytes	2024-4-21 19:12:49
AC	刘逸风	17ms	6 MiB	C++14(O2)	183 Bytes	2024-5-24 18:21:52
AC	张嘉芃	17ms	6.3 MiB	C++14(O2)	211 Bytes	2025-2-28 20:25:08
AC	刘恒嘉	17ms	6.1 MiB	C++14(O2)	219 Bytes	2024-5-20 20:50:35
AC	余昕璇	18ms	6.3 MiB	C++14(O2)	196 Bytes	2025-3-12 19:45:33
AC	test2	18ms	6.2 MiB	C++14(O2)	195 Bytes	2024-12-28 13:59:14
AC	黎锦宸	19ms	6.3 MiB	C++14(O2)	177 Bytes	2025-4-26 19:47:46
AC	钟礼铠	19ms	6.3 MiB	C++14(O2)	186 Bytes	2025-6-28 12:09:53
AC	吕明哲	19ms	6.3 MiB	C++14(O2)	229 Bytes	2025-6-14 19:45:49
AC	童宇晨	19ms	780 KiB	C++14(O2)	191 Bytes	2026-3-11 20:23:14
AC	向籽言	19ms	6.2 MiB	C++14(O2)	191 Bytes	2024-12-7 13:54:30
AC	安嘉珩	19ms	6.2 MiB	C++14(O2)	210 Bytes	2024-10-26 14:40:38
AC	马浩宇	19ms	6.3 MiB	C++14(O2)	246 Bytes	2025-3-9 11:14:27
AC	薛宇晨	19ms	6.3 MiB	C++14(O2)	185 Bytes	2025-7-2 11:13:48
AC	严方谊	20ms	6.3 MiB	C++14(O2)	245 Bytes	2025-4-19 11:39:45
AC	王梓腾	20ms	6.3 MiB	C++14(O2)	182 Bytes	2025-7-1 9:29:25
AC	周鑫	20ms	6.2 MiB	C++14(O2)	209 Bytes	2024-12-29 15:17:32
AC	祝福	20ms	6.2 MiB	C++14(O2)	210 Bytes	2024-11-17 15:38:39
AC	熊梓诺	20ms	6.2 MiB	C++14(O2)	241 Bytes	2024-11-23 9:49:00
AC	郑西	20ms	6.2 MiB	C++14(O2)	201 Bytes	2024-12-1 16:00:53
AC	杨子涵	20ms	6.3 MiB	C++14(O2)	163 Bytes	2025-6-28 18:46:22
AC	李彦泽	20ms	6.2 MiB	C++14(O2)	199 Bytes	2025-1-5 10:42:09
AC	陈奕可	21ms	6.3 MiB	C++14(O2)	192 Bytes	2025-4-6 16:24:12
AC	黄己恩	21ms	6.3 MiB	C++14(O2)	185 Bytes	2025-6-21 18:24:06
AC	王子墨	21ms	6.3 MiB	C++14(O2)	245 Bytes	2025-4-2 19:00:32
AC	肖渃璃	21ms	6.3 MiB	C++14(O2)	192 Bytes	2025-3-21 19:37:17
AC	赵子豪	21ms	6.3 MiB	C++14(O2)	185 Bytes	2025-6-28 18:59:43
AC	王艺皓	22ms	6.2 MiB	C++14(O2)	245 Bytes	2024-10-26 11:49:31
AC	蒲施羽	22ms	6.3 MiB	C++14(O2)	209 Bytes	2025-6-14 19:46:32
AC	唐若轩	22ms	6.1 MiB	C++14(O2)	183 Bytes	2024-9-21 11:41:06
AC	亮途	22ms	6.1 MiB	C++14(O2)	184 Bytes	2024-10-7 13:41:37
AC	史骐坤	22ms	6.2 MiB	C++14(O2)	244 Bytes	2024-12-15 9:31:47
AC	王嘉怡	23ms	6.3 MiB	C++14(O2)	175 Bytes	2025-4-13 15:05:55
AC	罗开朗	23ms	6.2 MiB	C++14(O2)	275 Bytes	2024-10-26 11:37:32
AC	方一帆	25ms	6.1 MiB	C++14(O2)	206 Bytes	2024-8-21 14:44:43
AC	杨如楠	25ms	5.9 MiB	C++14(O2)	202 Bytes	2024-10-11 16:05:13
AC	DH-LZR	25ms	6.3 MiB	C++14(O2)	214 Bytes	2025-1-24 12:02:52
AC	罗莎	25ms	6 MiB	C++14(O2)	206 Bytes	2024-9-1 10:59:21
AC	付佳敏	25ms	5.9 MiB	C++14(O2)	203 Bytes	2024-10-11 16:15:34
AC	张天源	27ms	6.3 MiB	C++14(O2)	242 Bytes	2025-1-11 11:34:56
AC	郑惟楷	27ms	5.9 MiB	C++14(O2)	244 Bytes	2024-9-22 20:53:29
AC	程裕澍	27ms	6 MiB	C++14(O2)	195 Bytes	2024-9-21 10:22:45
AC	冯昱哲	28ms	6.2 MiB	C++14(O2)	200 Bytes	2025-1-16 13:42:47
AC	刘兵	34ms	6.1 MiB	C++14(O2)	249 Bytes	2024-8-16 16:55:28
AC	周驭准	37ms	6.3 MiB	C++14(O2)	286 Bytes	2025-5-23 21:48:36
AC	沈鼎皓	132ms	3.9 MiB	Python 3	100 Bytes	2026-7-13 7:15:21
AC	高宇豪	406ms	10.4 MiB	Python 3	105 Bytes	2024-8-21 14:48:57